1 Professor, and HOD, Department of Dentistry, Believers Church Medical College Hospital, Thiruvalla.
2 Associate Professor, Dept. of Oral and Maxillofacial Surgery, Government dental college and Hospital, Kottayam, Kerala, India. Electronic address: drpgantony@yahoo.com.
3 Resident, Dept. of oral and maxillofacial surgery, Govt Dental College and Hospital, Kottayam, Kerala, India.
4 Associate Professor, Dept. of Oral and Maxillofacial Surgery, PMS College of Dental Sciences and Research, Trivandrum, Kerala, India. Electronic address: draneesh2008@gmail.com.